Malicious PDF — malware analysis report

Static analysis result for SHA-256 21a6c141754b702a…

MALICIOUS

PDF

37.6 KB Authoring application: Inkscape
MD5: 119cf97b69aa55c617c8a0cd37ac8608 SHA-1: 127479b7f927e9f536e82059269cd3bc3b9350a9 SHA-256: 21a6c141754b702a032a5ac7725dbda08daaf18d80ce28576635da4e2c678501
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links to other PDFs, a technique often used for SEO manipulation or to host phishing content. The ClamAV detection 'Pdf.Phishing.TtraffRobotInstall-7605656-0' and the heuristic 'PDF_SEO_LINK_FARM' strongly indicate a malicious intent related to link farming and potentially phishing. The document body also contains a call-to-action phrase, reinforcing the lure aspect.

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://sarahdguerra.com/uploads/1/3/0/2/130272579/2623699.pdf
    • http://paulsmusicacademy.com/uploads/1/3/0/6/130604288/suxelulidodatawere.pdf
    • http://agedanddistilled.com/uploads/1/3/0/5/130589083/mojogenenabimisabiti.pdf
    • http://kupetspinkinvitational.com/uploads/1/3/0/7/130775587/duvebosal.pdf
    • http://bluhorizontravel.com/uploads/1/3/0/2/130272892/809395.pdf
    • http://carolinaspconstruction.com/uploads/1/3/0/5/130589245/8b6384c4.pdf
    • http://blockchainambassador.ca/uploads/1/3/0/2/130287242/130287242.html#large+pdf+to+word+converter+online+free+without+email

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001118.bin
8a1c2617f03c2ab748a8c5cc392445d435c7f5c09e1112edf59d7b4c00dbf8f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1118 8196 bytes

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